Home / 81,625.03-122,484.82-34,235.90

Finding the Fourth Proportional to 81,625.03, 122,484.82 and 34,235.90

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Solution

The fourth proportional to 81,625.03, 122,484.82 and 34,235.90 is: 51,373.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,625.03 : 122,484.82 = 34,235.90 : x
  2. Step 2: Convert to fraction form
    81,625.03/122,484.82 = 34,235.90/x
  3. Step 3: Cross multiply
    81,625.03x = 122,484.82 × 34,235.90
  4. Step 4: Simplify right side
    81,625.03x = 4,193,378,049.04
  5. Step 5: Solve for x
    x = 4,193,378,049.04/81,625.03
  6. Step 6: Final answer
    x = 51,373.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.